Raya and the last dragons

What if the dragon gem wasn't the only thing left of the dragons? What if there was an egg? An egg that no one but the guardians of the gem knew about. One that the elder guardian would keep on them at all times. Well, there is one. And Raya is the holder of it along with a piece of the broken dragon gem. When she revives Sisu, she shows her the egg only for Sisu to gasp in shock and look at it teary eyed. Why? Well..... You'll just have to read to find out.